Nickels, W. G. (1987). Understanding Business. Times Mirror.
Chicago-čujuhus (17. p.)Nickels, William G. Understanding Business. ST.Louis: Times Mirror, 1987.
MLA-čujuhus (9. p.)Nickels, William G. Understanding Business. Times Mirror, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.